For the purposes of the professional rescuer and the amatuer listener, radio frequencies used in Boulder County and surrounding areas are being provided here.
Law enforcement frequencies are not provided.
Accuracy is not guaranteed. Corrections and suggestions are welcomed.
A partial entry means that I'm waiting for you to tell me!thanks to Galen Koepke of High Country FD for more updates

Transmit

Receive

CTCSS

Designation

Purpose

Call Sign

154.325

151.355

179.9

RED One(repeater)

Main Fire Dispatch: Boulder County & City [Mead Repeater]

1800 & 2500

154.325

154.325

179.9

RED One(simplex)

Main Fire Dispatch: Boulder County & City

1800 & 2500

154.205

154.205

179.9

RED Two

Fire Car to Car, Boulder City

25XX

154.415

154.415

179.9

RED Three

Fire Car to Car, Boulder County

County-wide Emergency Operations

154.430

154.175

179.9

LFB #1 (repeater)

Dispatch: Longmont City Fire

2100

154.175

154.175

179.9

LFB #2 (simplex)

Car to Car: Longmont City Fire

21XX

155.385

155.385

Unknown

LFD

Car to Car: Louisville

37XX

155.100

155.100

179.9

Lyons

Lyons Fire Department

4000

Rural Rescue

155.205

155.205

Carrier

BES

Boulder Emergency Squad

3100

155.160

155.160

Carrier

MRA

Mountain Rescue Association

1900 & State-wide Emergency Operations

155.235

155.235

Carrier

RMR 2

Rocky Mountain Rescue

19XX

Rural Fire

153.890

153.890

179.9

BRFPD

Boulder Rural Fire Protection District

2300

154.160

154.160

179.9

CFD

Cherryvale Fire Department

2400

151.745

151.745

Unknown

CFD 2

Cherryvale Fire Department(Car-to-Car)

24XX

153.935

153.935

Unknown

CCFPD

Coal Creek Fire Protection District

5800

154.145

154.145

100.0

HCFPD

High Country Fire Protection District

5700 & Gilpin County Emergency Operations

154.355

154.355

179.9

MVFPD

Mountain View Fire Protection District

2200

150.805

151.205

179.9

MVFPD 2

Mountain View Fire Protection District(Car-to-Car)

22XX

154.250

154.250

179.9

SLFD Tach

Sugar Loaf Fire Department

55XX

153.830

153.830

179.9

RED Four (5 watt limit)

Fire Packset to Packset, Boulder County

County-wide Emergency Operations

154.280

154.280

Carrier

FERN

Fire Emergency Radio Network: Mutual Aid, State Wide LZ coordination

State-wide Emergency Operations

122.280

122.280

Carrier

MARS

Fire & EMS: Ground to Aircraft, Air Tankers & Air Ambulance

State-wide Emergency Operations

154.295

154.295

Carrier

FERN 2

Fire Emergency Radio Network: Mutual Aid

State-wide Emergency Operations

154.265

154.265

Carrier

FERN 3

Fire Emergency Radio Network: Mutual Aid

State-wide Emergency Operations

122.925

122.925

Carrier

BCSD AIR

Boulder County Emergency Services Aircraft

500

153.935

153.935

173.8

JeffCo Fire

Jefferson County Fire Channel 1

5800

460.575

460.575

Unknown

SWAC

South West Adams County Fire District

156.015

153.845

100.0

Gilpin Fire #1

Dispatch & Car to Car: Gilpin County

153.845

153.845

100.0

Gilpin Fire by-pass

Car to Car: Gilpin County

153.965

154.010

Unknown

BFD

Dispatch: Berthoud Fire

154.010

154.010

Unknown

BFD

Car to Car: Berthoud Fire

151.340

151.340

151.4

CSFS

Colorado State
Forest Service

5900

169.175

169.175

179.9

USFS

United States
Forest Service

5900

160.005

153.605

Unknown

Pridemark Paramedics

Pridemark:
Dispatch & Car to Car

Pridemark 1 through 21

154.340

154.340

Carrier

HERN

Hospital Emergency Radio Network

State Wide coordination

160.455

160.455

Carrier

UP Railroad

UP Railroad

State-wide Emergency Operations

Transmission on the EMS frequency listed below requires different CTCSS sidetone frequencies to reach different facilities.